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| 川西高山松林火烧迹地植被生物量与生产力恢复动态 | |
| 引用本文： | 王玉涛,马钦彦,侯广维,阚振国,陈圆.川西高山松林火烧迹地植被生物量与生产力恢复动态[J].林业科技,2007,32(1):37-40. |
| 作者姓名： | 王玉涛 马钦彦 侯广维 阚振国 陈圆 |
| 作者单位： | 1. 武警警种指挥学院,北京,102202 2. 北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083 3. 四川省林业干部学校,成都,610061 |
| 基金项目： | 国家自然科学基金，四川省科技攻关项目 |
| 摘 要： | 用"空间序列代替时间序列"的研究方法对川西高山松林不同年龄火烧迹地的研究结果表明:高山松干生物量占地上部总生物量比例随年龄的增大逐渐增加,到23年生时,干生物量比例已达80%左右;较小的林分密度可以促进高山松的提早结实,但较大的结实量则导致较小的干生物量比例.灌木层生物量在恢复早期随迹地年龄增大逐渐增高,在火烧后20年时达最高,随着高山松开始形成乔木层,其生物量开始逐渐减小;草本层生物量以1～6年火烧迹地较高,在总体生物量中占有较大比例,但随着灌木和高山松迅速生长,其生物量呈现减少的趋势;在火烧迹地恢复的前27年,高山松的生产力呈现随迹地年龄增大逐渐升高的趋势,且生产力增大的速率也随迹地年龄的增大而迅速提高,而草本层生产力则随迹地年龄的增大而逐渐减小. |
| 关 键 词： | 高山松 川西 生物量 生产力 火烧迹地 |
| 文章编号： | 1001-9499（2007）01-0037-04 |
| 修稿时间： | 2006-10-18 |
Dynamics of Biomass and Productivity in the Natural Restoration Progress of the Pinus densata Burned Areas in Western Sichuan Province |
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| WANG Yutao.Dynamics of Biomass and Productivity in the Natural Restoration Progress of the Pinus densata Burned Areas in Western Sichuan Province[J].Forestry Science & Technology,2007,32(1):37-40. | |
| Authors: | WANG Yutao |
| Institution: | The Services Command College of Chinese Armed Police Force, Beijing 102202 |
| Abstract: | The investigation on biomass,productivity and vegetation change in Pinus densata burned areas at different ages through the"space sequence" instead of "time sequence" method demonstrates that: the proportion of Pinus densata's bole to its total overground biomass arguments with age in the period of young age.The rate achieves 80% at the 23 age.The less density accelerates the seedling of Pinus densata while the over seeding causes the less proportion of Pinus densata's bole.The biomass of shrub layer increases with ages of the burned areas in the early stage of restoration.It reaches the climax at 20th year after burning.Then it deceases gradually with the Pinus densata arbor layer forming.The biomass of herb layer and the rate of it with respect to the total biomassis is higher 1~6 years after fire than that at other years.Whereas it drops with Pinus densata seedlings growing up and the shrub layer forming.During 27 years after burning the Pinus densata productivity rises and the velocity of the rise is boosted rapidly with age.The productivity of herb layer diminishes simultaneously with age. |
| Keywords: | Pinus densata Western Sichuan Province Biomass Productivity Burned areas |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |